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SP PRO ABB Managed AC Coupling
Installation Notes
IN0036 Revision 04 (005150) – 1 of 18 POWER PERFORMANCE PASSION
SP PRO ABB Managed AC Coupling
Introduction
The SP PRO ABB Managed AC Coupling provides a method of linking the ABB PVI-3.0/3.6/4.2-TL-OUTD and ABB PVI-5000/6000-TL-OUTD string inverters to the SP PRO via the AC Load
supply so that regardless of whether the grid or a generator is connected, the SP PRO can manage and control the ABB string inverters.
Each SP PRO can manage a maximum of five ABB string inverters by commanding each string
inverter to output the right amount of power that is needed simultaneously to supply the load, export any excess and maintain the battery bank at any particular point in time. This is done
via a communications link which also serves to retrieve all the operational data for display and logging by the SP PRO.
This document details the additional steps needed to install the managed system. The SP PRO
and ABB inverters can be installed as per their individual installation instructions with the additional allowance of a communications cable linking all of the inverters.
Notes: This document needs to be read in conjunction with the SP PRO Instruction Manual and the ABB PVI-3.0/3.6/4.2-TL-OUTD Series or ABB PVI-5000/6000-TL-OUTD Instruction Manuals.
ONLY Selectronic Certified ABB inverters can be used for managed AC coupling, noncertified ABB inverters can be used as a generic configuration.
Important information
ABB can only be configured while minimum 200Vdc is applied to the solar inputs.
Additional information
For more installation information and installation video scan QR code => or go to: http://www.selectronic.com.au/ABBSolar/guides/
SP PRO ABB Managed AC Coupling
Installation Notes
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The Overview
The diagram below shows a managed AC coupled system with five ABB inverters.
System Requirements
To successfully install an SP PRO ABB managed system, there are particular requirements that
need to be met.
This installation document is applicable to SP PRO series II (revision 21 or greater)
inverters only with 8.0 Firmware or greater.
Combined maximum AC output of all the connected ABB inverters must not exceed twice
the continuous rating of the SP PRO (Except for SPLC1202 which is 35kW).
Battery bank must be sized to suit the SP PRO model and the combined maximum AC
Output power of the ABB inverters.
SP PRO inverter must have firmware version 8.0 or greater.
All ABB inverters must be Selectronic Certified (Selectronic signage on front access cover).
Maximum of 5 ABB inverters per SP PRO
RS485 Communications
between SP PRO and all ABB inverters
ABB inverters connected to AC Load
side of SP PRO
SP PRO ABB Managed AC Coupling
Installation Notes
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SP PRO MODEL AND MINIMUM BATTERY CAPACITY FOR SOLAR HYBRID SYSTEMS
For a Solar Hybrid (grid connected) system, the minimum battery capacity that must be
connected to the SP PRO inverter varies depending on SP PRO model only. The following table defines the minimum battery capacity for each SP PRO model.
When the system is islanded (e.g. during a grid outage) the SP PRO will limit the output of the AC coupled solar based on the actual installed battery size (see table 3 in Appendix I)
Minimum Battery Capacity for Solar Hybrid Systems (@C10)1,2
SP PRO Model Combined max. ABB
AC Output
SPMC240 SPMC241 SPMC481 SPMC482 SPMC1201 SPLC1200 SPLC1202
1 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
2 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
3 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
4 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
5 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
6 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
7 kW Not valid 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
8 kW Not valid 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
9 kW Not valid 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
10 kW Not valid Not valid 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
11 kW Not valid Not valid Not valid 180 Ah 100 Ah 250 Ah 250 Ah
12 kW Not valid Not valid Not valid 180 Ah 100 Ah 250 Ah 250 Ah
13 kW Not valid Not valid Not valid 180 Ah 100 Ah 250 Ah 250 Ah
14 kW Not valid Not valid Not valid 180 Ah 100 Ah 250 Ah 250 Ah
15 kW Not valid Not valid Not valid 180 Ah 100 Ah 250 Ah 250 Ah
16 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
17 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
18 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
19 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
20 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
25 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
30 kW Not valid Not valid Not valid Not valid Not valid 250 Ah 250 Ah
35 kW Not valid Not valid Not valid Not valid Not valid Not valid 250 Ah
Table 1: Solar Hybrid: Minimum Battery capacity for each SP PRO model and AC solar Notes:
1. Battery capacity is C10 rating. 2. Round battery capacity up as appropriate to available battery sizes.
Ensure that the system meets these minimum battery capacity requirements. Any battery combinations larger than the minimum are suitable.
SP PRO ABB Managed AC Coupling
Installation Notes
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SP PRO MODEL AND MINIMUM BATTERY CAPACITY FOR OFF GRID SYSTEM
The minimum battery capacity that must be connected to the SP PRO inverter varies depending
on SP PRO model, an overriding minimum battery capacity and the combined maximum ABB AC Output. The following table defines the minimum battery capacity for each SP PRO model.
Minimum Battery Capacity for Off Grid Systems (@C10)1,2
SP PRO Model Combined max. ABB
AC Output
SPMC240 SPMC241 SPMC481 SPMC482 SPMC1201 SPLC1200 SPLC1202
1 kW 180 Ah 180 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
2 kW 320 Ah 320 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
3 kW 480 Ah 480 Ah 180 Ah 180 Ah 100 Ah 250 Ah 250 Ah
4 kW 640 Ah 640 Ah 320 Ah 320 Ah 128 Ah 250 Ah 250 Ah
5 kW 800 Ah 800 Ah 400 Ah 400 Ah 160 Ah 250 Ah 250 Ah
6 kW 960 Ah 960 Ah 480 Ah 480 Ah 192 Ah 250 Ah 250 Ah
7 kW Not valid 1120 Ah 560 Ah 560 Ah 224 Ah 250 Ah 250 Ah
8 kW Not valid 1280 Ah 640 Ah 640 Ah 256 Ah 256 Ah 256 Ah
9 kW Not valid 1440 Ah 720 Ah 720 Ah 288 Ah 288 Ah 288 Ah
10 kW Not valid Not valid 800 Ah 800 Ah 320 Ah 320 Ah 320 Ah
11 kW Not valid Not valid Not valid 880 Ah 352 Ah 352 Ah 352 Ah
12 kW Not valid Not valid Not valid 960 Ah 384 Ah 384 Ah 384 Ah
13 kW Not valid Not valid Not valid 1040 Ah 416 Ah 416 Ah 416 Ah
14 kW Not valid Not valid Not valid 1120 Ah 448 Ah 448 Ah 448 Ah
15 kW Not valid Not valid Not valid 1200 Ah 480 Ah 480 Ah 480 Ah
16 kW Not valid Not valid Not valid Not valid Not valid 512 Ah 512 Ah
17 kW Not valid Not valid Not valid Not valid Not valid 544 Ah 544 Ah
18 kW Not valid Not valid Not valid Not valid Not valid 576 Ah 576 Ah
19 kW Not valid Not valid Not valid Not valid Not valid 608 Ah 608 Ah
20 kW Not valid Not valid Not valid Not valid Not valid 640 Ah 640 Ah
25 kW Not valid Not valid Not valid Not valid Not valid 800 Ah 800 Ah
30 kW Not valid Not valid Not valid Not valid Not valid 960 Ah 960 Ah
35 kW Not valid Not valid Not valid Not valid Not valid Not valid 1120 Ah
Table 2: Off Grid: Minimum Battery capacity for each SP PRO model and AC solar Notes:
1. Battery capacity is C10 rating. 2. Round battery capacity up as appropriate to available battery sizes.
Ensure that the system meets these minimum battery capacity requirements. Any battery combinations larger than the minimum are suitable.
SP PRO ABB Managed AC Coupling
Installation Notes
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SP PRO REQUIREMENTS
1. The SP PRO units’ revision must be 21 or later (series II).
2. SP PRO Software Version 8.0 or later is required. To check software revision run SP
LINK, connect to the SP PRO and go to Data View – Technical Data – “SP PRO Revision” and “Software Version”
Packaging Label indicating Revision: 21
Older revisions of firmware must be updated to firmware revision 8.0 or later. Do NOT change any configuration settings until firmware is updated.
Note: Selectronic web site – http://www.selectronic.com.au for latest SP PRO firmware and Tech Note 34 SP PRO Firmware Update Procedure.
SP PRO ABB Managed AC Coupling
Installation Notes
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Installation
The SP PRO and ABB inverters should be installed as per their respective installation
instructions. Particular instructions directly related to Managed AC Coupling are listed below. It is good practice to number each ABB inverter from 1 up to 5 so that each inverter can be
easily referenced within SP LINK. In a three phase AC coupled system label each ABB inverter L1-1 to L1-5 for the ABB inverters connected to SP PRO L1, L2-1 to L2-5 for those connected to L2 and so on.
Note: The address numbers programmed into the ABB solar inverters start from 2 and go up to 6 instead of 1 to 5. This is because the lowest address that can be programmed into the ABB solar inverter is 2. When viewing Data in SP Link the inverter #1 in SP Link is connected to ABB inverter address 2, inverter #2 in SP Link is connected to ABB inverter address 3 etc.
ABB AC WIRING
The ABB AC output wiring must be connected to the AC Load terminals of the SP PRO in
accordance with local wiring rules for correct operation.
ABB AC Wiring guide for Grid connected installation
ABB
Communications Interface Board Link
ABB
SP PRO ABB Managed AC Coupling
Installation Notes
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ABB AC Wiring guide for Off Grid installation
Note: The system will NOT function correctly if the ABB inverters are installed on the AC Source side of the SP PRO.
ABB
ABB Communications Interface Board Link
SP PRO ABB Managed AC Coupling
Installation Notes
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COMMUNICATIONS LINK (RS485)
The communication link always starts at the SP PRO and links to the “AC Coupled Interface PCA (Sergio)”, then connects to all the ABB inverters in a daisy chain arrangement and finishes at
the last ABB inverter. There is no need to connect the ABB inverters in any particular order. To install the AC Coupled Interface PCA (Sergio), remove the bottom two screws from the
Expansion Card and replace them with the provided 2x stand offs. Then mount the AC Coupled Interface PCA (Sergio) to the Expansion Card inside the SP PRO close to the Serial Communication PCA as illustrated.
Connect the RJ45 Connector lead from the AC Coupled Interface PCA (Sergio) “To RS485 Port 2” to the SP PRO Serial Communication PCA RS485 Port 2 and connect the second RJ45 lead
from the AC Coupled Interface PCA (Sergio) “To ABB AC Coupled Inverter” to the ABB inverter RS485B connector. Connect the AC Coupled Interface PCA (Sergio) power loom (12V)
from AC Coupled Interface PCA (Sergio) “12V DC Power J4” to the SP PRO Serial Communication PCA 12V connector.
Note: Do not connect any RJ45 leads to the Sergio AC Coupled Interface PCA “To Other AC Coupled Inverters” connector as the pin out is different to the ABB connection.
To ABB Inverter
Expansion Card bottom screws
replaced with stand offs.
SP PRO ABB Managed AC Coupling
Installation Notes
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SP PRO Connections (inside unit) – RS485 Port 2 RJ45 connector to AC Coupled Interface PCA (Sergio) and to ABB inverter RS485B connector
Sync 1
Sync 2
RS485 Port 2
RS232 Port 2
RS232 Port 1
To ABB AC Coupled Inverter
ABB Inverter Comm’s
RS485 A RS485 B
Communications PCA
Expansion Card
ABB Inverter
12V DC Power AC Coupled Interface PCA
(Sergio) To RS485
Port 2
SP PRO Inverter
SP PRO ABB Managed AC Coupling
Installation Notes
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ABB PVI-3.0/3.6/4.2-TL-OUTD Series RS485 Connections
ABB PVI-3.0/3.6/4.2-TL-OUTD Series RS485 Connections (inside unit) – RJ45 connectors
On the ABB inverter there are two RJ45 sockets allowing “looping through” of the wiring to
additional inverters. Either connection point is suitable. When looped to another ABB inverter, the termination switch should be set to “OFF” (away
from ON). For the last ABB inverter on the Communications Link (RS485) (or when only one ABB inverter is used), the termination switch must be set to “ON”.
RS485A RS485B
Last ABB on Communications Link (RS485), or when only
ABB is used: S2 ON (Terminator ON)
ABB loop-through: S2 OFF (Terminator OFF)
S2
S2 ON
S2 OFF
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Installation Notes
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ABB PVI-5000/6000-TL-OUTD Series
ABB PVI-5000/6000-TL-OUTD Series RS485 Connections (inside unit) – RJ45 connectors
On the ABB inverter there are two parallel sets of RJ45 connections allowing “looping through”
of the wiring to additional inverters. Either connection point is suitable. When looped to another ABB, the termination switch should be set to “OFF” (away from ON).
For the last ABB inverter on the Communications Link (RS485) (or when only one ABB inverter is used), the termination switch must be set to “ON”.
ABB loop-through: S2 OFF (Terminator OFF)
Last ABB on Communications Link (RS485), or when only
ABB is used: S2 ON (Terminator ON)
RS485A RS485B S2
S2 ON
S2 OFF
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Installation Notes
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Configuration – Additional Settings
It is recommended that the Site Configuration wizard in the Easy Start Guide (in SP
LINK 8.0 and above) be used to configure the SP PRO settings. Using the wizard will ensure all the SP PRO settings are compatible with the manage AC coupled system.
The settings detailed below will be set when the Site Configuration Wizard is used to configure the SP PRO. Only the additional settings required to enable ABB Managed AC Coupling are shown. The remainder of systems settings will be set by the Site Configuration Wizard.
The SP PRO must be configured before any of the ABB inverters are energised. The AC coupled failsafe system in the SP PRO is only enabled when the correct ABB configuration has
been programmed into the SP PRO. The ABB inverters must be appropriately addressed to ensure correct communications (see
“ABB Port Configuration” section).
SETTINGS THAT ARE SET BY SITE CONFIGURATION WIZARD
In SP LINK – CONFIGURATION SETTINGS – SYSTEM the follow settings will be set.
Managed AC Coupled Link, String Inverter is set to ABB Solar. Number of ABB inverters connected is set to the number of ABB inverters installed
in the system.
SP LINK - Configuration Settings – System tab
Note: a. Port 2 Communication settings will not be available once ABB Communication port has
been enabled. b. The ABB inverters numbering starts from 2 to 6 instead of 1 to 5 when creating a
communication link to SP Link e.g. inverter 1 in SP Link is connected to ABB inverter address 2, inverter 2 in SP Link is connected to ABB inverter address 3 etc.
In the example used above, there are only two ABB inverter connected to the SP PRO.
SP PRO ABB Managed AC Coupling
Installation Notes
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ABB PORT CONFIGURATION
The settings listed below are all that is required.
Each ABB inverter must be set to an inverter address from 2 to 6 as appropriate.
NOTE: The ABB inverters numbering starts from 2 to 6 instead of 1 to 5 when creating a communication link to SP Link e.g. inverter 1 in SP Link is connected to ABB inverter address 2, inverter 2 in SP Link is connected to ABB inverter address 3 etc.
1. Isolate the AC and connect the DC supply to the ABB inverter(s) and ensure that the DC
supply (Minimum 200Vdc) is present at the ABB inverter.
2. When the ABB inverter is powered for the first time, select the “Nation” of installation. For Australia and New Zealand select “AS 4777” and press the ENTER key once and to save the setting, hold the ENTER key for 5 seconds, the ABB inverter will reset.
Note: When an ABB inverter is powered without the AC, “Missing Grid “will be displayed on screen.
3. Once the display is active on the ABB inverter, enter parameter settings mode. To enter settings mode, press the ESC button to access the main menu, then using the DOWN key, scroll to Setting and press ENTER. The ESC is also used to escape back to the
previous menu or to edit previous digits.
Use the UP and DOWN keys to scroll through the various menu items in settings. The
menu is continuous. When the end is reached, the display automatically returns to the first item. The UP/DOWN keys are used to scroll menu options or to shift numerical scales in ascending/ descending order.
SP PRO ABB Managed AC Coupling
Installation Notes
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To access “Settings”, a passcode is required. By default 0000 is the passcode or by
pressing the ENTER key four times to access the setting option. Use ENTER key to confirm an action or to access submenus.
4. Scroll to Address setting and press ENTER.
a. If only one ABB inverter is installed then the address must be set to 2. b. If more than one ABB inverter is installed then the address must be allocated
sequentially starting from 2 (i.e. first ABB = 2, second ABB =3, third ABB = 4
etc). c. Once the “Address” is selected, press the ENTER key to configure and return to
the “Setting” menu.
Note:
a. The ABB inverter address starts from 2 to 6, where inverter 1 in SP Link is connected to ABB inverter Address 2, i.e. ABB inverter 1 address 2 = inverter 1 SP Link, ABB inverter 2 address 3 = inverter 2 SP Link, ABB inverter 3 address 4 = inverter 3 SP Link etc.
b. Do Not skip any address numbers in the sequence when using multiple ABB inverters.
5. Scroll to Remote Control setting and press ENTER.
a. Set the ABB inverter “Remote Control” to Enable, this will allow the ABB inverter to disconnect through the control signal.
b. Once the “Remote Control” is enabled, press the ENTER key to configure and
return to the “Setting” menu. Note: The PVI-6000-TL-OUTD Remote Control setting contains an extra sub menu “Three Phase Unbalanced”, when prompted, press the ESC key to return to Enable/Disable Remote Control and select Enable.
SP PRO ABB Managed AC Coupling
Installation Notes
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6. Scroll to the Power Reduction setting and press ENTER.
NOTE: ABB inverters compliant with the AS/NZS 4777.2-2015 will not contain the Power Reduction setting in the inverter.
a. The ABB inverter is set to 100% as default, use the UP key to set the “Power
Reduction” to 0.0%.
b. Once the “Remote Reduction” is selected, press the ENTER key to configure and
return to the “Setting” menu.
NOTE: Do not go back into the Power Reduction setting once it is set to 0% otherwise the display will show 100% even though the setting was set to 0%. This is
normal. The 0% can be verified by the commissioning test “Testing the Failsafe on the RS485 Link” on Pg 16.
7. Press the ESC key once to return to the main menu. The ABB inverter may perform an automatic reset to configure the changes made.
8. If there are multiple ABB inverters installed, repeat for all others.
9. When all is configured, the ABB inverter display screen will cycle through the main menu
automatically. To stop the menu from cycling, press and hold the ENTER key until a lock appears at the top right hand corner of the display screen.
a. To check that the ABB inverter is under power control, use the DOWN key to
approach the following menu screen, make sure a percentage is displayed on the display indicating that the inverter is controlled by the SP PRO.
b. The Percentage Power may be displaying less than 100% even though no power
limiting is required. This is because the SP PRO intelligently uses predictive algorithms to determine the optimum value based on the available solar input to
the grid inverter at that time.
10. Carry out the System Commissioning testing in the following section (Page 16).
ABB inverter display locked
SP PRO ABB Managed AC Coupling
Installation Notes
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Note: If Reactive Power is required to be configured, preform the following procedure before step 6. Note: Reactive Power must also be set in the SP PRO that is connected to the ABB inverter.
a. Scroll to Reactive Power setting and press ENTER.
b. The ABB inverter “Reactive Power” consists of four types of management to enable. Set the appropriate parameters required, press the ENTER key to configure and return to the “Setting” menu.
SP PRO ABB Managed AC Coupling
Installation Notes
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System Commissioning – Additional Tests
In addition to the normal system testing that would be performed, the following additional tests
must be performed as detailed below.
The commissioning sequence should verify the SP PRO and its operation without any of the ABB inverters in operation and then once the steps below are performed, the ABB inverters can be
brought into service.
COMMUNICATIONS LINK (RS485) VERIFICATION
The correct operation of the ABB Managed AC Coupling relies on the Communications Link. It is vital that the communications link (RS485)
connection has been setup correctly before operating the AC coupled system.
1. Check that all the RS485 connections have been connected correctly.
2. Isolate the AC and connect the DC supply to the ABB inverter. Make sure that the DC supply is pressent at the ABB inverter and its display is on.
3. In the Data View => Technical Data tab there should be live data for all the connected ABB inverters. As a minimum there should be a reading for the DC volts, the ABB Device Address and the ABB
model number displayed. a. If the ABB inverter data is “Inverter off line” then check the
RS485 wiring and connections.
Note: AC Energy Today, DC current, AC power, and AC current are not available from an ABB inverter.
For SP PRO Firmware version 8.00 or greater the Communication link may be further tested using the AC Solar Link Test found in SP LINK under the
Service Settings tab. 1. In the Service Settings tab click the “Reset Counters” button.
2. Wait 2 minutes and check that the error count remains at zero for all the connected ABB inverters. (An error count of 3 or less per minute is acceptable but in this case it is good practice to check the wiring and
that the termination resistors are set correctly in the SP PRO and ABB.
Once the Communications link has been verified for each ABB inverter, the AC feeds to each ABB inverter can be switched on and full system testing
and verification can be performed.
TESTING THE FAILSAFE ON THE RS485 LINK
Once the system is operational, unplug the RS485 communications link from the SP PRO to the ABB inverters. Wait 1 minute and check that the output of each of the ABB inverters has
dropped to approximately 0.1kW.
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Appendix I : Islanding power limit vs battery capacity
Islanded power limit (kW)
SP PRO Model Battery Capacity
Ah (C10) SPMC240 SPMC241 SPMC481 SPMC482 SPMC1201 SPLC1200 SPLC1202
100 Not valid Not valid Not valid Not valid 3.1kW Not valid Not valid
180 1.1kW 1.1kW 2.3kW 2.3kW 5.6kW Not valid Not valid
250 1.6kW 1.6kW 3.1kW 3.1kW 7.8kW 7.8kW 7.8kW
300 1.9kW 1.9kW 3.8kW 3.8kW 9.4kW 9.4kW 9.4kW
400 2.5kW 2.4kW 5.0kW 5.0kW 12.5kW 12.5kW 12.5kW
500 3.1kW 3.1kW 6.3kW 6.3kW 15.0kW 15.6kW 15.6kW
600 3.8kW 3.8kW 7.5kW 7.5kW 15.0kW 18.8kW 18.8kW
700 4.4kW 4.4kW 8.8kW 8.8kW 15.0kW 21.9kW 21.9kW
800 5.0kW 5.0kW 10.0kW 10.0kW 15.0kW 25.0kW 25.0kW
900 5.6kW 5.6kW 10.0kW 11.3kW 15.0kW 28.1kW 28.1kW
1000 6.0kW 6.3kW 10.0kW 12.5kW 15.0kW 30.0kW 31.3kW
1100 6.0kW 6.9kW 10.0kW 13.8kW 15.0kW 30.0kW 34.4kW
1200 6.0kW 7.5kW 10.0kW 15.0kW 15.0kW 30.0kW 35.0kW
1300 6.0kW 8.1kW 10.0kW 15.0kW 15.0kW 30.0kW 35.0kW
1400 6.0kW 8.8kW 10.0kW 15.0kW 15.0kW 30.0kW 35.0kW
1500 + 6.0kW 9.0kW 10.0kW 15.0kW 15.0kW 30.0kW 35.0kW
Table 3: Limit to AC couple solar during islanding vs battery capacity
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